Microsoft no longer offers VB.NET certification exams because the focus of current learning paths and certifications has shifted toward modern .NET development, cloud technologies, and languages like C#. While VB.NET is still supported, it isn’t a priority area for new certification content.
At this time, there are no announced plans to bring back VB.NET exams. The best option is to follow the existing .NET and programming certifications, which cover skills that apply across multiple .NET languages.